Machine for cutting paper



WIT NESSES Nitin STATES HERVEY LAV, OF GHATHAM, NEW JERSEY.

MACHINE FOR. CUTTING PAPER.

Specification forming part of Letters Patent No. 42,200, dated April 5, 1864.

To LU whom t may concern:

Be it known that I, IIERVEY LAW, of Chatham, in the county of Morris and State of New Jersey, have invented a new and Im proved Machine for Cutting Paper, designed for the use of book-binders, paper-box makers, Ste. 5 and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in Vwhich-- Figure lis a front elevation of my invention; Fig. 2, a transverse vertical section of the same, taken in the line .fr x, Fig. 1; Fig. 3, a back elevation of the same.

Similar letters of reference indicate corresponding parts of the several figures.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents the frame of the machine, which may be of cast-iron and composed of two uprights, a a, connected near their lower ends by crosslrods b, and connected at their upper ends by a crossplate, c, having a slot, d, made longitudinally in it, with an upright ilange, e, at each side.

B B are two parallel arms or bars, the upper ends of which are secured by pivots ff between the flanges c e, the arms or bars passing through the slot d, and attached at their lower ends by pivots g g to a horizontal bar, C, the ends of which work through vertical slots h h in the uprights c a. To this bar C the knife D is attached, the latter projecting down a suitable distance below the bar C.

To one end of the bar G a rod E isconnccted by a pivot or bolt, i, the lower end of said rod passing through and being connected with a small shaft, j, at one end of a lever, F, which has its fulcrum at 7c, and passes through slotsl l in the uprights a a. Ihe opposite end of this lever F is connected by a pin, m, which passes through a longitudinal oblong slot in the lever to an upright rack, G, into which a pinion, H, on a drivin gehaft, I, gears. 0n the drivin gshaft I there is placed a driving-pulley, J, which, in practice, is placed loosely on shaft I, and connected to and disconnected from it by means of a clutch arranged in any proper manner.

Kis a horizontal bed firmly secured to a cross-bar, n, between the two uprights a a. 0n this bed K there is placed a block, L, on which the paper to be (cut shown in red) is laid.

M is a rectangular upright frame placed in the' frame A, and composed of two upright rods, o o, connected at their upper and lower ends by horizontal bars, p p, the ends of which have tenons q formed on them to work betweenguides r at the inner side of the uprights a a. The lower bar, p', of the frame M has two vertical racks, N N, attached toit, into which pinions O O on a shaft, P., gear, one end of said shaft having a worm-wheel, Q, upon it, which gears into a screw, R, on a shaft, S, the latter being at one side ot' the the frame A, and having a hand-wheel, T, at its front end. By turning this shaft S the frame M may be raised and lowered, and the under edge of the upper bar, @brought in contact with the paper on block L, or raised up free from it when desired. The upper bar, p, works by the side of the knife D, and the latter, it will be seen, will be drawn down to act upon and cut the paper when Vthe shaft I is turned in the proper direction to admit of the pinion H raisiirilglthe rack G and operating the lever F. us I obtain a powerful mechanism for operating the knife within quite a limited compass. When the rack G is run up the extent of its movement and the knife D has completed its cut, the pulley J is disconnected from the shaft I, and the rack G and the attached end of lever F drop by their own gravity, and t-he knife D rises to its upward position, ready for` a succeeding downward stroke. The paper is adjusted properly underneath the knife D by means of a gage, U, which is an upright plate placed on the bed K and having a pendent nut, V, attached, which passes through a slot, s, in the bed K. This nut V has a screw, W, passing through it, said screw being fitted in bearings t. attached to the under side of the bed K. By turning the screw W the gage U may be moved forward or backward to the desired spot to admit of the paper being placed against it to bring the paper properly under the knife or at the points where the cuts should be made. This gage U, it will be seen, as well as the elamp-bar p of the frame M, may be adjusted by the operator from the The combination of it lever, F, with the front side of the machine. The bar p is knife andthe rack and pinion, substantially brought down upon the paper previous to in the manner and for the purpose herein cach out of the knife D, and the gage M is shown and described.

adjusted from time to time to suit the size of the sheets of paper to be cut or trimmed. HERVEY LAW' Having thus described my invention, what Witnesses:

I claim as new, und desire to secure by Letters TROS.. J. DOUGLAS, Patent, isy M. M. LIVINGSTON. 

